Global Patent Index - EP 3185491 A1

EP 3185491 A1 20170628 - RELIABLE TRANSPORT OF ETHERNET PACKET DATA WITH WIRE-SPEED AND PACKET DATA RATE MATCH

Title (en)

RELIABLE TRANSPORT OF ETHERNET PACKET DATA WITH WIRE-SPEED AND PACKET DATA RATE MATCH

Title (de)

ZUVERLÄSSIGER TRANSPORT VON ETHERNET-PAKETDATEN MIT DRAHTGESCHWINDIGKEITS- UND PAKETDATENRATENANPASSUNG

Title (fr)

TRANSPORT FIABLE DE DONNÉES ETHERNET PAR PAQUETS AVEC UNE CORRESPONDANCE ENTRE DÉBIT DE DONNÉES PAR PAQUETS ET VITESSE FILAIRE

Publication

EP 3185491 A1 20170628 (EN)

Application

EP 17000057 A 20150106

Priority

  • US 201414173782 A 20140205
  • EP 15747033 A 20150106

Abstract (en)

Method, apparatus, and systems for reliably transferring Ethernet packet data over a link layer and facilitating fabric-to-Ethernet and Ethernet-to-fabric gateway operations at matching wire speed and packet data rate. Ethernet header and payload data is extracted from Ethernet frames received at the gateway and encapsulated in fabric packets to be forwarded to a fabric endpoint hosting an entity to which the Ethernet packet is addressed. The fabric packets are divided into flits, which are bundled in groups to form link packets that are transferred over the fabric at the Link layer using a reliable transmission scheme employing implicit ACKnowledgements. At the endpoint, the fabric packet is regenerated, and the Ethernet packet data is de-encapsulated. The Ethernet frames received from and transmitted to an Ethernet network are encoded using 64b/66b encoding, having an overhead-to-data bit ratio of 1:32. Meanwhile, the link packets have the same ratio, including one overhead bit per flit and a 14-bit CRC plus a 2-bit credit return field or sideband used for credit-based flow control.

IPC 8 full level

H04L 47/43 (2022.01); H04L 45/74 (2022.01)

CPC (source: EP US)

H04L 5/0055 (2013.01 - US); H04L 45/66 (2013.01 - US); H04L 45/74 (2013.01 - EP US); H04L 45/745 (2013.01 - EP US); H04L 47/17 (2013.01 - US); H04L 47/39 (2013.01 - US); H04L 49/25 (2013.01 - EP US); H04L 2101/375 (2022.05 - US); H04Q 2213/13215 (2013.01 - US)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

US 2015222533 A1 20150806; US 9628382 B2 20170418; CA 2956432 A1 20150813; CN 105900386 A 20160824; CN 105900386 B 20190813; EP 3103233 A1 20161214; EP 3103233 A4 20170809; EP 3103233 B1 20181003; EP 3185491 A1 20170628; US 10305802 B2 20190528; US 2017237659 A1 20170817; WO 2015119732 A1 20150813

DOCDB simple family (application)

US 201414173782 A 20140205; CA 2956432 A 20150106; CN 201580003764 A 20150106; EP 15747033 A 20150106; EP 17000057 A 20150106; US 2015010304 W 20150106; US 201615396497 A 20161231